Skip Navigation

Lateral Collateral (Fibular Collateral) Ligament

Last Updated: Jun 9, 2015

The lateral collateral (fibular collateral) ligament prevents side-to-side displacement of the knee in the outer direction. It consists of a strong, round cord located between the lateral condyle of the femur (thigh bone) and the head of the fibula at the knee joint.

A collateral ligament is made up of several thick bands of fibrous branches. A ligament is a tough band of white, fibrous, slightlymycontentbreak elastic tissue. This is an essential part of the skeletal joints; binding the bone ends together to prevent dislocation and excessive movement that might cause breakage. Ligaments, especially those in the knee, are sometimes damaged by injury. A torn ligament usually results from twisting stress when the knee is turned while weight is on that particular leg. Minor sprains are treated with ice, bandages and sometimes physical therapy, but if the ligament is torn, the joint may be placed in a plaster cast to allow time to heal or it may require surgical repairs. The word ligament comes from the Latin word, ligamentum, meaning a band or tie.